#732631 (D) No.1817 Reversed Edges

• 問題: No.1817 Reversed Edges
• ユーザー: daut-dlang
• 提出日時: 2022-01-21 21:39:43
• 言語: D (dmd 2.106.1)
• 結果: WA
• 実行時間: -
• コード長: 2,883 bytes
• コンパイル時間: 798 ms
• コンパイル使用メモリ: 123,776 KB
• 実行使用メモリ: 22,264 KB
• 最終ジャッジ日時: 2024-06-22 14:06:45
• 合計ジャッジ時間: 4,847 ms
• ジャッジサーバーID （参考情報）: judge1 / judge4

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 6,812 KB
testcase_01	AC	1 ms; 6,940 KB
testcase_02	WA	-
testcase_03	WA	-
testcase_04	AC	1 ms; 6,940 KB
testcase_05	WA	-
testcase_06	WA	-
testcase_07	WA	-
testcase_08	WA	-
testcase_09	WA	-
testcase_10	WA	-
testcase_11	WA	-
testcase_12	WA	-
testcase_13	WA	-
testcase_14	WA	-
testcase_15	WA	-
testcase_16	WA	-
testcase_17	WA	-
testcase_18	WA	-
testcase_19	WA	-
testcase_20	WA	-
testcase_21	WA	-
testcase_22	AC	104 ms; 13,680 KB
testcase_23	AC	105 ms; 14,440 KB
testcase_24	AC	128 ms; 22,264 KB

ソースコード

import std.stdio, std.conv, std.functional, std.string;
import std.algorithm, std.array, std.container, std.range, std.typecons;
import std.bigint, std.numeric, std.math, std.random;
import core.bitop;

string FMT_F = "%.10f";

static File _f;
void file_io(string fn) { _f = File(fn, "r"); }
static string[] s_rd;
T _RD(T = long)() { while(!s_rd.length) s_rd = readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; }
T _RD(T = long)(File f) { while(!s_rd.length) s_rd = f.readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; }
T[] _RDA(T = long)(T fix = 0) { auto r = readln.chomp.split.to!(T[]); r[] += fix; return r; }
T[] _RDA(T = long)(File f, T fix = 0) { auto r = f.readln.chomp.split.to!(T[]); r[] += fix; return r; }
T RD(T = long)() { if (_f.isOpen) return _RD!T(_f); else return _RD!T; }
T[] RDA(T = long)(T fix = 0) { if (_f.isOpen)  return _RDA!T(_f, fix); else return _RDA!T(fix); }

size_t[] MAKE_IDX(alias less = "a < b", Range)(Range range) { auto idx = new size_t[](range.length); makeIndex!(less)(range, idx); return idx;}
size_t MIN_POS(alias less = "a < b", Range)(Range range) { auto r = minPos!(less)(range); return range.length - r.length; }

void chmin(T)(ref T x, T y) { x = min(x, y); } void chmax(T)(ref T x, T y) { x = max(x, y); }
bool inside(T)(T x, T b, T e) { return x >= b && x < e; }
T lcm(T)(T x, T y) { return x * (y / gcd(x, y)); }
double euDist(T)(T[] a, T[] b) { auto c = a.dup; c[] -= b[]; c[] *= c[]; return sqrt(cast(double)c.sum); }
double[] rotate(double[] vec, double rad) { return [cos(rad)*vec[0] - sin(rad)*vec[1], sin(rad)*vec[0] + cos(rad)*vec[1]]; }
double norm(double[] vec) { return sqrt(reduce!((a,b)=>a+b*b)(0.0, vec)); }
double dotProd(double[] a, double[] b) { auto r = a.dup; r[] *= b[]; return r.sum; }

//long mod = 10^^9 + 7;
long mod = 998_244_353;
//long mod = 1_000_003;
void moda(ref long x, long y) { x = (x + y) % mod; }
void mods(ref long x, long y) { x = ((x + mod) - (y % mod)) % mod; }
void modm(ref long x, long y) { x = (x * y) % mod; }
void modpow(ref long x, long y) { if (!y) { x = 1; return; } auto t = x; x.modpow(y>>1); x.modm(x); if (y&1) x.modm(t); }
void modd(ref long x, long y) { y.modpow(mod - 2); x.modm(y); }

void main()
{
	auto N = RD;
	auto edges = new long[][](N);
	foreach (i; 0..N-1)
	{
		auto A = RD-1;
		auto B = RD-1;
		edges[A] ~= B;
		edges[B] ~= A;
	}

	long dfs(long pos, long last)
	{
		long res;
		foreach (v; edges[pos])
		{
			if (v == last) continue;
			if (v < pos)
				++res;
			dfs(v, pos);
		}
		return res;
	}
	auto ans = new long[](N);
	ans[0] = dfs(0, -1);

	void dfs2(long pos, long last)
	{
		if (last != -1)
		{
			ans[pos] = ans[last] + (pos > last ? 1 : -1);
		}

		foreach (v; edges[pos])
		{
			if (v == last) continue;
			dfs2(v, pos);
		}
	}
	dfs2(0, -1);

	foreach (e; ans)
		writeln(e);

	stdout.flush;
	debug readln;
}